ページ作成機能：フロント：メタタグの表示制御作成

core/app/helpers/comable/application_helper.rb

@@ -48,6 +48,22 @@ def liquidize(content, arguments)
       string.respond_to?(:html_safe) ? string.html_safe : string
     end
 
+    def current_meta_description
+      if current_resource.present? && current_resource_meta_method_respond_to?(:meta_description)
+        current_resource.meta_description
+      elsif current_store.meta_description.present?
+        current_store.meta_description
+      end
+    end
+
+    def current_meta_keywords
+      if current_resource.present? && current_resource_meta_method_respond_to?(:meta_keywords)
+        current_resource.meta_keywords
+      elsif current_store.meta_keywords.present?
+        current_store.meta_keywords
+      end
+    end
+
     private
 
     def after_sign_in_path_for(_resource)
@@ -69,5 +85,17 @@ def after_update_path_for(resource)
     def after_resetting_password_path_for(resource)
       signed_in_root_path(resource) || comable.root_path
     end
+
+    def current_resource
+      instance_variable_get current_resource_name
+    end
+
+    def current_resource_name
+      "@#{controller.controller_name.singularize}"
+    end
+
+    def current_resource_meta_method_respond_to?(method)
+      current_resource.respond_to? method
+    end
   end
 end

core/spec/helpers/comable/application_helper_spec.rb

@@ -17,4 +17,61 @@
       expect(subject.liquidize('email: {{ order.email }}', order: order)).not_to include(order.email)
     end
   end
+
+  context 'メタタグ' do
+    let!(:page) { FactoryGirl.create(:page) }
+    describe 'インスタンス変数があってメタタグのメソッドがある場合' do
+      before do
+        allow(subject).to receive(:current_resource).and_return(page)
+        allow(subject).to receive(:current_resource_meta_method_respond_to?).and_return(true)
+      end
+
+      context 'インスタンス変数のメタタグを表示する' do
+        it '#current_meta_description' do
+          expect(subject.current_meta_description).to eq(page.meta_description)
+        end
+
+        it '#current_meta_keywords' do
+          expect(subject.current_meta_keywords).to eq(page.meta_keywords)
+        end
+      end
+    end
+
+    describe 'インスタンス変数があってメタタグのメソッドがない場合' do
+      let!(:store) { FactoryGirl.create(:store, meta_description: 'store_meta_description', meta_keywords: 'store_keywords') }
+      before do
+        allow(subject).to receive(:current_store).and_return(store)
+        allow(subject).to receive(:current_resource).and_return(page)
+        allow(subject).to receive(:current_resource_meta_method_respond_to?).and_return(false)
+      end
+
+      context 'ストアのメタタグを表示する' do
+        it '#current_meta_description' do
+          expect(subject.current_meta_description).to eq(store.meta_description)
+        end
+
+        it '#current_meta_keywords' do
+          expect(subject.current_meta_keywords).to eq(store.meta_keywords)
+        end
+      end
+    end
+
+    describe 'インスタンス変数がない場合' do
+      let!(:store) { FactoryGirl.create(:store, meta_description: 'store_meta_description', meta_keywords: 'store_keywords') }
+      before do
+        allow(subject).to receive(:current_store).and_return(store)
+        allow(subject).to receive(:current_resource)
+      end
+
+      context 'ストアのメタタグを表示する' do
+        it '#current_meta_description' do
+          expect(subject.current_meta_description).to eq(store.meta_description)
+        end
+
+        it '#current_meta_keywords' do
+          expect(subject.current_meta_keywords).to eq(store.meta_keywords)
+        end
+      end
+    end
+  end
 end

frontend/app/views/layouts/comable/application.slim

@@ -3,11 +3,12 @@ html
   head
     title = current_store.name
 
-    - if current_store.meta_keywords.present?
-      meta name="keywords" content="#{current_store.meta_keywords}"
+    - if current_meta_keywords.present?
+      meta name="keywords" content="#{current_meta_keywords}"
+
+    - if current_meta_description.present?
+      meta name="description" content="#{current_meta_description}"
 
-    - if current_store.meta_description.present?
-      meta name="description" content="#{current_store.meta_description}"
 
     = stylesheet_link_tag "comable/frontend/application", media: "all"
     = javascript_include_tag "comable/frontend/application"